Isaac Sim version: 5.1.0
Operating System: Ubuntu 22.04
GPU: RTX3090
Driver: 550.144.03
I’m using Ufactory’s lite6.usd file (https://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/5.1/Isaac/Robots/Ufactory/lite6/lite6.usd) in the Lula Robot Description Editor to generate collision spheres for my robot. But the Generate Spheres option didn’t work and I got this error: [Warning] [isaacsim.robot_setup.xrdf_editor.extension] Could not generate spheres for any meshes in link /link2. This is likely due to all meshes nested under /link2 being instanceable
I followed the solution in this thread - Lula Robot Description Editor Could not generate spheres - but it did not work. I stopped the timeline, unchecked “instanceable” for all of the elements - visuals and collisions and then tried Generate Spheres. It still threw the same error. I got the same error for all the links of the robot.
Error Messages:
2025-11-26 07:54:49 [Warning] [isaacsim.robot_setup.xrdf_editor.extension] Could not generate spheres for any meshes in link /world. This is likely due to all meshes nested under /world being instanceable
2025-11-26 07:54:53 [Warning] [isaacsim.robot_setup.xrdf_editor.extension] Could not generate spheres for any meshes in link /link1. This is likely due to all meshes nested under /link1 being instanceable
2025-11-26 07:54:56 [Warning] [isaacsim.robot_setup.xrdf_editor.extension] Could not generate spheres for any meshes in link /link2. This is likely due to all meshes nested under /link2 being instanceable
2025-11-26 07:54:59 [Warning] [isaacsim.robot_setup.xrdf_editor.extension] Could not generate spheres for any meshes in link /link3. This is likely due to all meshes nested under /link3 being instanceable
2025-11-26 07:55:02 [Warning] [isaacsim.robot_setup.xrdf_editor.extension] Could not generate spheres for any meshes in link /link4. This is likely due to all meshes nested under /link4 being instanceable
2025-11-26 07:55:04 [Warning] [isaacsim.robot_setup.xrdf_editor.extension] Could not generate spheres for any meshes in link /link5. This is likely due to all meshes nested under /link5 being instanceable
2025-11-26 07:55:07 [Warning] [isaacsim.robot_setup.xrdf_editor.extension] Could not generate spheres for any meshes in link /link6. This is likely due to all meshes nested under /link6 being instanceable